Remove dead code and comment [NFC]

llvm-svn: 265413

1 files changed, 1 insertions, 11 deletions

diff --git a/polly/lib/Analysis/ScopInfo.cpp b/polly/lib/Analysis/ScopInfo.cpp
index ff1c337a837..ff88536846c 100644
--- a/polly/lib/Analysis/ScopInfo.cpp
+++ b/polly/lib/Analysis/ScopInfo.cpp
@@ -2512,19 +2512,9 @@ void Scop::propagateDomainConstraints(Region *R, ScopDetection &SD,
       }
     }
 
-    // Get the domain for the current block and check if it was initialized or
-    // not. The only way it was not is if this block is only reachable via error
-    // blocks, thus will not be executed under the assumptions we make. Such
-    // blocks have to be skipped as their predecessors might not have domains
-    // either. It would not benefit us to compute the domain anyway, only the
-    // domains of the error blocks that are reachable from non-error blocks
-    // are needed to generate assumptions.
     BasicBlock *BB = getRegionNodeBasicBlock(RN);
     isl_set *&Domain = DomainMap[BB];
-    if (!Domain) {
-      DomainMap.erase(BB);
-      continue;
-    }
+    assert(Domain);
 
     // Under the union of all predecessor conditions we can reach this block.
     auto *PredDom = getPredecessorDomainConstraints(BB, Domain, SD, DT, LI);